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Finding the Fourth Proportional to 113,401.80, 170,110.80 and 34,515.90

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Solution

The fourth proportional to 113,401.80, 170,110.80 and 34,515.90 is: 51,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,401.80 : 170,110.80 = 34,515.90 : x
  2. Step 2: Convert to fraction form
    113,401.80/170,110.80 = 34,515.90/x
  3. Step 3: Cross multiply
    113,401.80x = 170,110.80 × 34,515.90
  4. Step 4: Simplify right side
    113,401.80x = 5,871,527,361.72
  5. Step 5: Solve for x
    x = 5,871,527,361.72/113,401.80
  6. Step 6: Final answer
    x = 51,776.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.